Glandular bias

"You're not his glandular bias" was the phrase used at a Halloween party in 1993 to 'tactfully' explain to Jill Rappaport that John Reddy was gay and that she should stop hitting on him. Of course, the two were only discussing comic books.

This term was used as early as 1961 in Heinlein's "Stranger in a Strange Land" in a similar context.